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1 office 1 /* GObject - GLib Type, Object, Parameter and Signal Library
2 * Copyright (C) 1998-1999, 2000-2001 Tim Janik and Red Hat, Inc.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General
15 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
16 */
17  
18 #include "config.h"
19  
20 #include <stdlib.h>
21 #include <string.h>
22 #include <sys/stat.h>
23 #include <fcntl.h>
24  
25 #include <glib-object.h>
26 #include <glib/gprintf.h>
27  
28  
29 static gchar *indent_inc = NULL;
30 static guint spacing = 1;
31 static FILE *f_out = NULL;
32 static GType root = 0;
33 static gboolean recursion = TRUE;
34  
35 #if 0
36 # define O_SPACE "\\as"
37 # define O_ESPACE " "
38 # define O_BRANCH "\\aE"
39 # define O_VLINE "\\al"
40 # define O_LLEAF "\\aL"
41 # define O_KEY_FILL "_"
42 #else
43 # define O_SPACE " "
44 # define O_ESPACE ""
45 # define O_BRANCH "+"
46 # define O_VLINE "|"
47 # define O_LLEAF "`"
48 # define O_KEY_FILL "_"
49 #endif
50  
51 static void
52 show_nodes (GType type,
53 GType sibling,
54 const gchar *indent)
55 {
56 GType *children;
57 guint i;
58  
59 if (!type)
60 return;
61  
62 children = g_type_children (type, NULL);
63  
64 if (type != root)
65 for (i = 0; i < spacing; i++)
66 g_fprintf (f_out, "%s%s\n", indent, O_VLINE);
67  
68 g_fprintf (f_out, "%s%s%s%s",
69 indent,
70 sibling ? O_BRANCH : (type != root ? O_LLEAF : O_SPACE),
71 O_ESPACE,
72 g_type_name (type));
73  
74 for (i = strlen (g_type_name (type)); i <= strlen (indent_inc); i++)
75 fputs (O_KEY_FILL, f_out);
76  
77 fputc ('\n', f_out);
78  
79 if (children && recursion)
80 {
81 gchar *new_indent;
82 GType *child;
83  
84 if (sibling)
85 new_indent = g_strconcat (indent, O_VLINE, indent_inc, NULL);
86 else
87 new_indent = g_strconcat (indent, O_SPACE, indent_inc, NULL);
88  
89 for (child = children; *child; child++)
90 show_nodes (child[0], child[1], new_indent);
91  
92 g_free (new_indent);
93 }
94  
95 g_free (children);
96 }
97  
98 static gint
99 help (gchar *arg)
100 {
101 g_fprintf (stderr, "usage: gobject-query <qualifier> [-r <type>] [-{i|b} \"\"] [-s #] [-{h|x|y}]\n");
102 g_fprintf (stderr, " -r specifiy root type\n");
103 g_fprintf (stderr, " -n don't descend type tree\n");
104 g_fprintf (stderr, " -h guess what ;)\n");
105 g_fprintf (stderr, " -b specify indent string\n");
106 g_fprintf (stderr, " -i specify incremental indent string\n");
107 g_fprintf (stderr, " -s specify line spacing\n");
108 g_fprintf (stderr, "qualifiers:\n");
109 g_fprintf (stderr, " froots iterate over fundamental roots\n");
110 g_fprintf (stderr, " tree print type tree\n");
111  
112 return arg != NULL;
113 }
114  
115 int
116 main (gint argc,
117 gchar *argv[])
118 {
119 GLogLevelFlags fatal_mask;
120 gboolean gen_froots = 0;
121 gboolean gen_tree = 0;
122 gint i;
123 const gchar *iindent = "";
124  
125 f_out = stdout;
126  
127 fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
128 fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
129 g_log_set_always_fatal (fatal_mask);
130  
131 root = G_TYPE_OBJECT;
132  
133 for (i = 1; i < argc; i++)
134 {
135 if (strcmp ("-s", argv[i]) == 0)
136 {
137 i++;
138 if (i < argc)
139 spacing = atoi (argv[i]);
140 }
141 else if (strcmp ("-i", argv[i]) == 0)
142 {
143 i++;
144 if (i < argc)
145 {
146 char *p;
147 guint n;
148  
149 p = argv[i];
150 while (*p)
151 p++;
152 n = p - argv[i];
153 indent_inc = g_new (gchar, n * strlen (O_SPACE) + 1);
154 *indent_inc = 0;
155 while (n)
156 {
157 n--;
158 strcpy (indent_inc, O_SPACE);
159 }
160 }
161 }
162 else if (strcmp ("-b", argv[i]) == 0)
163 {
164 i++;
165 if (i < argc)
166 iindent = argv[i];
167 }
168 else if (strcmp ("-r", argv[i]) == 0)
169 {
170 i++;
171 if (i < argc)
172 root = g_type_from_name (argv[i]);
173 }
174 else if (strcmp ("-n", argv[i]) == 0)
175 {
176 recursion = FALSE;
177 }
178 else if (strcmp ("froots", argv[i]) == 0)
179 {
180 gen_froots = 1;
181 }
182 else if (strcmp ("tree", argv[i]) == 0)
183 {
184 gen_tree = 1;
185 }
186 else if (strcmp ("-h", argv[i]) == 0)
187 {
188 return help (NULL);
189 }
190 else if (strcmp ("--help", argv[i]) == 0)
191 {
192 return help (NULL);
193 }
194 else
195 return help (argv[i]);
196 }
197  
198 if (!gen_froots && !gen_tree)
199 return help (argv[i-1]);
200  
201 if (!indent_inc)
202 {
203 indent_inc = g_new (gchar, strlen (O_SPACE) + 1);
204 *indent_inc = 0;
205 strcpy (indent_inc, O_SPACE);
206 }
207  
208 if (gen_tree)
209 show_nodes (root, 0, iindent);
210 if (gen_froots)
211 {
212 root = ~0;
213 for (i = 0; i <= G_TYPE_FUNDAMENTAL_MAX; i += G_TYPE_MAKE_FUNDAMENTAL (1))
214 {
215 const gchar *name = g_type_name (i);
216  
217 if (name)
218 show_nodes (i, 0, iindent);
219 }
220 }
221  
222 return 0;
223 }